Miner Xhigh — Development agent for Claude Code
Delegate worker pinned to XHIGH reasoning effort.
How to install Miner Xhigh
Installs to ~/.claude/agents/nagisanzenin-effortmining-miner-xhigh.md
mkdir -p ~/.claude/agents && curl -fsSL https://raw.githubusercontent.com/nagisanzenin/effortmining/HEAD/agents/miner-xhigh.md -o ~/.claude/agents/nagisanzenin-effortmining-miner-xhigh.md Restart Claude Code, or start a new session, for it to be picked up.
What Miner Xhigh does
name: miner-xhigh description: "Delegate worker pinned to XHIGH reasoning effort. Pick for hard, multi-step reasoning with adversarial or overfit-punishing edge cases such as combinatorial counting, constrained ordering, or ledger-style state. Pilot v1 (2026-07-06) calibrates no class to this tier — its T4-hard-reasoning tasks were flagged too easy and settled at low — so reach for xhigh when a task is genuinely harder than the pilot suite and you want headroom over high without the saturati
Alternatives in Development
- Review Concurrency — Reviews code changes for concurrency defects found by multi-thread interleaving reasoning: race conditions, vi 432 ★
- PRD Reviewer — Review a PRD and flag missing acceptance criteria, edge cases, and 135 ★
- Unit Tester — Specialist in logic isolation and unit testing 93 ★
Full documentation available on GitHub
View Source RepositoryRelated Agents
Miner High
Delegate worker pinned to HIGH reasoning effort, the Opus 4.8 model default. Pick for diagnosis, multi-constra
Miner Low
Delegate worker pinned to LOW reasoning effort, the cheapest tier. Pick for mechanical retrieval, extraction,
Dnp TDD Developer Hard
🔬 Deep TDD for complex .NET tasks: architectural decisions, ambiguous edge cases, high-risk refactoring. Writ
Jev Deep
Repository worker pinned to the deep tier (opus). Use when you already know the tier you want and would rather
Constraint Check
Internal affairs auditor — checks whether HARD-GATEs and constraints were actually followed during workflow. U
Retro Miner
Transcript miner for /retro. Reads the session transcript and correction ledger with fresh eyes and extracts t
Related Skills
Definition Of Done Rules
Always-on Definition of Done. Applied to every behavior change. Five hard criteria plus two opt-in -- review,
HERO Anti OverDefense
HERO = Hashing · Edge cases · Rubrics · Overbuild — the four shapes coding agents over-defend in. A paste-in c
Cluster Triage
Ensemble-curator step 6 — for a detected cluster, pick winner(s) by file-path, extract edge cases from losers,